Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:59:36 2013

Optimize a model with 17261 rows, 16851 columns and 67281 nonzeros
Presolve removed 1075 rows and 0 columns
Presolve time: 0.10s
Presolved: 16186 rows, 16851 columns, 65131 nonzeros
Variable types: 16810 continuous, 41 integer (41 binary)

Root relaxation: objective 4.116369e+04, 2299 iterations, 0.17 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0 41163.6854    0    1          - 41163.6854     -      -    0s
H    0     0                    41418.000000 41163.6854  0.61%     -    0s
H    0     0                    41382.000000 41163.6854  0.53%     -    0s
H    0     0                    41381.000000 41163.6854  0.53%     -    0s
     0     0 41164.0039    0    2 41381.0000 41164.0039  0.52%     -    0s
     0     0 41164.0471    0    2 41381.0000 41164.0471  0.52%     -    0s
     0     2 41175.1700    0    2 41381.0000 41175.1700  0.50%     -    0s
*    2     1               1    41358.000000 41317.4131  0.10%  82.5    0s

Cutting planes:
  Gomory: 1
  Flow cover: 2

Explored 4 nodes (2536 simplex iterations) in 0.88 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.135800000000e+04, best bound 4.135800000000e+04, gap 0.0%